<template>
<div class="login_container">
  <div class="login_box">
    <!--头像区域-->
    <div class="avatar_box">
      <img src="../assets/logo.png" alt />
    </div>

    <!--登录表单区域-->
    <el-form ref="loginFormRef" label-width="0px" :model="loginForm" :rules="loginFormRules" class="login_form">
      <!--用户名-->
      <el-form-item prop="username">
        <el-input v-model="loginForm.username" prefix-icon="el-icon-s-custom"></el-input>
      </el-form-item>

      <!--密码-->
      <el-form-item prop="password">
        <el-input v-model="loginForm.password" prefix-icon="el-icon-lock" type="password"></el-input>
      </el-form-item>

      <!--按钮区-->
      <el-form-item class="btns">
        <el-button @click="login" type="primary">登录</el-button>
        <el-button @click="resetLoginForm" type="info">重置</el-button>
      </el-form-item>
    </el-form>
  </div>
</div>
</template>

<script>
export default {
  data() {
    return {
      // 这是登录表单到数据绑定对象
      loginForm: {
        username: "admin",
        password: "123456",
      },
      // 这是表单验证规则
      loginFormRules: {
        // 验证用户名是否合法
        username: [{
            required: true,
            message: "请输入用户名",
            trigger: "blur",
          },
          {
            min: 2,
            message: "最少两位",
            trigger: "blur",
          },
        ],
        // 验证密码是否合法
        password: [{
            required: true,
            message: "密码不能为空",
            trigger: "blur",
          },
          {
            min: 6,
            message: "最少六个核桃",
            trigger: "blur",
          },
        ],
      },
    };
  },

  methods: {
    resetLoginForm() {
      this.$refs.loginFormRef.resetFields();
      console.log(this.loginForm.username);
      console.log(this.loginForm.password);
      this.$message("已重置");
    },
    login() {
      this.$refs.loginFormRef.validate(async (valid) => {
        if (!valid) return;
        const {
          data: res
        } = await this.$http.post(
          "/login",
          this.loginForm
        );

        if (res.meta.status !== 200) return this.$message.error("登录失败!");

        this.$message.success("登录成功");

        window.sessionStorage.setItem("token", res.data.token);
        this.$router.replace("/home");
      });
    },
  },
};
</script>

<style lang="less" scoped>
.login_container {
  background-color: #2b4b6b;
  height: 100%;
  display: flex;
  justify-content: center;
  align-items: center;
}

.login_box {
  width: 450px;
  height: 300px;
  background: #fff;
  border-radius: 5px;
  position: relative;

  .avatar_box {
    height: 130px;
    width: 130px;
    border: 1px solid #eee;
    border-radius: 50%;
    padding: 10px;
    box-shadow: 0 0 2px #ddd;
    position: absolute;
    left: 50%;
    transform: translate(-50%, -50%);
    background: #fff;

    img {
      width: 100%;
      height: 100%;
      border-radius: 50%;
      background: #eee;
    }
  }
}

.btns {
  display: flex;
  justify-content: flex-end;
}

.login_form {
  width: 100%;
  position: absolute;
  bottom: 0;
  box-sizing: border-box;
  padding: 0 20px;
}
</style>
